To improve the unbalanced development of children's aesthetic education, the work aims to enhance the design of children's aesthetic education products, explore their feasibility and practicality in terms of interface, interaction and content and put forward the design strategy and practical discussion on the application research of children's aesthetic education APP. Based on the S-O-R theory, combined with the flow theory and emotional hierarchy theory, relevant models were proposed and verified by SPSS and AMOS. On the basis of the hypothesis, the examples of children aged 4-14 operating the APP were observed and the design requirements for children's aesthetic education APP were put forward. Cognitive and design factors can positively affect the flow experience, satisfaction and user stickiness of children's aesthetic APP. The design suitable for children is different from that for adults. The improvement of child-centered design can effectively influence children's immersive experience of products by optimizing interface design, sound effects, interactive design and core mechanism.